EP3378754B1 - Fahrradanhänger mit verschwenkbarer deichsel - Google Patents

Fahrradanhänger mit verschwenkbarer deichsel Download PDF

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Publication number
EP3378754B1
EP3378754B1 EP18161403.3A EP18161403A EP3378754B1 EP 3378754 B1 EP3378754 B1 EP 3378754B1 EP 18161403 A EP18161403 A EP 18161403A EP 3378754 B1 EP3378754 B1 EP 3378754B1
Authority
EP
European Patent Office
Prior art keywords
drawbar
trailer
front wheel
bicycle
trailer frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18161403.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3378754A1 (de
Inventor
Thomas Fiegl
Achim Pohl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kettler Alu-Rad GmbH
Original Assignee
Kettler Alu-Rad GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kettler Alu-Rad GmbH filed Critical Kettler Alu-Rad GmbH
Publication of EP3378754A1 publication Critical patent/EP3378754A1/de
Application granted granted Critical
Publication of EP3378754B1 publication Critical patent/EP3378754B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K27/00—Sidecars; Forecars; Trailers or the like specially adapted to be attached to cycles
    • B62K27/003—Trailers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D63/00—Motor vehicles or trailers not otherwise provided for
    • B62D63/06—Trailers
    • B62D63/062—Trailers with one axle or two wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K27/00—Sidecars; Forecars; Trailers or the like specially adapted to be attached to cycles
    • B62K27/10—Other component parts or accessories

Definitions

  • the present invention relates to a bicycle trailer with a trailer frame, a loading floor, a rear wheel receptacle and a drawbar with a first end and a second end, the second end of the drawbar being connected to the trailer frame via a hinge with a hinge axis so that the drawbar is relative to the trailer frame is pivotable about the hinge axis between a first position and a second position, the trailer frame having a front, a rear, a top and a bottom, the hinge being arranged closer to the front than the rear wheel mount, with the first end the drawbar in the second position extends beyond the front of the trailer frame and is arranged such that the first end of the drawbar can be connected to a towing vehicle, the loading floor having a loading surface and an underbody surface which are arranged on opposite sides of the loading floor.
  • Bicycle trailers are used for transporting goods or people, with the goods or people to be transported being placed on the loading area of the bicycle trailer.
  • the drawbar is attached to a towing vehicle.
  • the drawbar is used to transfer forces between the towing vehicle and the trailer and defines a predetermined distance between the trailer and the towing vehicle in front.
  • the drawbar prevents the trailer from running into the towing vehicle in front.
  • the drawbar enables the bicycle trailer to follow a predetermined trajectory when cornering.
  • the drawbar can absorb the forces acting on it, the drawbar must be designed to be correspondingly stable. If the bicycle trailer is to be transported in a car, for example, the first end of the drawbar extending beyond the front of the trailer prevents the bicycle trailer from being stowed in a trunk in a space-saving manner.
  • the second end of the drawbar is detachably attached to the trailer frame in some bicycle trailers, so that the drawbar can be detached from the trailer frame and then stowed separately from the trailer.
  • the US patent U.S. 5,308,096 describes such a trailer with a pivotably arranged drawbar. To pull the trailer, the first end of the drawbar can be connected to a bicycle, while the second end of the drawbar connected to the trailer frame can be detached from the trailer frame for space-saving transport of the bicycle trailer.
  • the drawbar can be lost during transport.
  • the loosening and / or fastening of the second end of the drawbar to the trailer requires additional assembly work.
  • US 6,959,938 B1 discloses the features of the preamble of claim 1.
  • the documents US 6,959,938 B1 and US 2007/0284842 A1 each show a collapsible bicycle trailer with a drawbar.
  • the drawbar In order to be able to fold the bicycle trailer compactly, the drawbar is arranged to be pivotable about an axis of rotation relative to the bicycle frame. In the folded state of the bicycle trailer, the drawbar is arranged on the side of the underbody surface.
  • the bicycle trailer has no front wheel mount and also no front wheel attached to the front wheel mount.
  • the pamphlet DE 20 2008 013 184 U1 relates to a bicycle trailer that can be converted into a luggage cart. Neither in its design as a bicycle trailer nor in its design as a baggage cart is a front wheel which is attached to a front wheel mount and which can be pivoted together with the drawbar.
  • the pamphlet US 2011/0068558 A1 shows a transport trailer that can be attached to a seat post of a bicycle via a drawbar.
  • the drawbar can be pivoted about an axis of rotation relative to the frame of the transport trailer.
  • the transport trailer has no front wheel mount and no front wheel attached to the front wheel mount.
  • a bicycle trailer of the type mentioned at the beginning having a front wheel mount and a front wheel attached to the front wheel mount with an axis of rotation, the front wheel mount coupled to the drawbar being arranged so that it can pivot about the hinge axis of the joint relative to the trailer frame is that in a side view perpendicular to the front and the rear of the trailer frame, the axis of rotation of the front wheel is arranged on the side of the underbody surface when the drawbar is in the first position, and the axis of rotation of the front wheel in FIG the side view is arranged on the side of the loading area and / or is shifted further in the direction of the side of the loading area when the drawbar is in the second position.
  • the underbody area and the loading area are arranged on opposite sides of the loading floor. If the bicycle trailer is used, at least one rear wheel is attached to the rear wheel mount.
  • the trailer preferably has two rear wheel mounts with each of which a rear wheel is attached to the trailer.
  • the rear wheels are in contact with the ground, so that the underbody surface and the underside of the trailer frame face the ground.
  • the loading area and the top of the trailer frame are accordingly facing away from the ground.
  • the drawbar is in the first position, the first end of the drawbar is on the side of the underbody surface of the loading floor and closer to the rear of the trailer frame than the second end of the drawbar. In the first position, the drawbar extends with its first end in the direction of the rear of the trailer frame. In this way, the trailer can be transported to save space.
  • the first end of the drawbar in the first position preferably does not protrude beyond the sub-floor surface in a plan view of the sub-floor area. With the drawbar in the first position, the trailer can be transported even more space-saving. In particular, the first end of the drawbar in this way does not form a protrusion on which the trailer could hit or get stuck on people or objects when moving over the ground. The handling of the trailer is improved.
  • the trailer By pivoting the drawbar into the second position, the trailer can be configured in such a way that the trailer can be pulled on the drawbar by a towing vehicle. That for one
  • the first end of the drawbar provided for connection to a towing vehicle extends in the second position beyond the front of the trailer frame and is arranged in such a way that the first end of the drawbar can be connected to a towing vehicle.
  • the second end of the drawbar is connected to the trailer frame both in the first position and in the second position and during a pivoting movement via the joint, so that a change in the configuration of the trailer for pulling with the drawbar and for space-saving transport does not require dismantling of the drawbar the trailer frame.
  • the drawbar cannot be lost when the trailer is transported with the drawbar in the second position.
  • the term “trailer” is used synonymously for “bicycle trailer”, the teaching of the present invention not being restricted to the fact that the trailer is pulled by a bicycle.
  • the bicycle trailer can also be connected to other towing vehicles without deviating from the teaching according to the invention.
  • the pivoting movement of the drawbar to leave the second position in the direction of the first position does not include a directional component that points in a direction away from the underbody surface of the shop floor towards the loading area, and / or the pivoting movement of the drawbar to leave the second position in Direction of the first position includes a directional component pointing in a direction away from the rear towards the front of the trailer frame.
  • the pivoting movement of the drawbar to leave the second position in the direction of the first position comprises a movement component in the direction of the ground.
  • the drawbar is pivoted towards the ground to leave the second position. In this way, the pivoting movement for transferring the drawbar from the second position to the first position is not impaired by the trailer body, such as a roll bar, or goods and / or people on the loading area.
  • the joint axis of the joint with which the second end of the drawbar is attached to the trailer frame is arranged parallel to the rear wheel mount.
  • the first end of the drawbar preferably extends parallel to the sub-floor surface in the first position.
  • the hinge and / or the trailer frame has means for releasably fixing the drawbar in the second position, the means for releasably fixing preferably having a hinge lock and / or a quick release. If the drawbar can be fixed in the second position with a means, the first end of the drawbar can be in the second position can be more easily connected to or detached from a towing vehicle.
  • the fixing prevents the drawbar from pivoting towards the ground due to gravity if the first end of the drawbar is not attached to a towing vehicle in the second position.
  • the means for releasable fixing can be, for example, a joint lock that prevents the joint from being actuated, or a quick release with which the joint and / or the drawbar is clamped in the second position.
  • releasing the fixing of the drawbar in the second position comprises pivoting the drawbar with a movement component in a direction from the underbody surface of the loading floor towards the loading area. If the wheels attached to the rear wheel mount are in contact with the ground, releasing the fixing of the drawbar in the second position comprises lifting the drawbar, i.e. a pivoting movement of the drawbar away from the ground. In this way, the fixation can be released easily and without tools by lifting the drawbar. After releasing, the drawbar is pivoted back into the second position and pivoted from the second position in the direction of the first position downwards towards the ground.
  • the trailer has a front wheel mount and a front wheel attached to the front wheel mount with an axis of rotation, the front wheel mount coupled to the drawbar being arranged so that it can be pivoted about the hinge axis of the hinge in a side view perpendicular to the front and the rear of the trailer frame, the axis of rotation of the front wheel is arranged on the side of the underbody surface when the drawbar is in the first position, and the axis of rotation of the front wheel in the side view is arranged on the side of the loading area and / or further towards the side of the loading area is moved when the drawbar is in the second position.
  • the front wheel mount and the drawbar are coupled to the trailer frame and can be pivoted about the hinge axis.
  • the drawbar and the front wheel receptacle can be pivoted together about the joint axis by actuating the drawbar.
  • the drawbar and the front wheel receptacle are pivoted by the same pivot angle when pivoting between the first position and the second position. If the drawbar is swiveled back and forth between the first and second position, the front wheel mount also swivels about the joint axis.
  • the front wheel mount is used to attach the front wheel to the trailer so that the trailer can be used in many ways. If the drawbar is in the first position, the axis of rotation of the front wheel is arranged in a side view perpendicular to the front and the rear of the trailer frame on the side of the underbody surface. The one on the front wheel mount The attached front wheel faces the ground in the first position, like the drawbar, so that the front wheel touches the ground and can be rolled over the road about its axis of rotation. The trailer is with the rear wheels and the front wheel on the road.
  • the Trailer the distance between the axis of rotation of the front wheel attached to the front wheel mount and the roadway is small when the drawbar is in the first position, and larger when the drawbar is in the second position. If the axis of rotation of the front wheel is on the side of the loading area, the front wheel has no contact with the ground when the drawbar is in the second position. In this way, the rolling resistance when pulling the trailer with a towing vehicle is reduced.
  • the front wheel attached to the front wheel receptacle can be brought into or out of engagement with a road surface by pivoting the drawbar about the joint axis.
  • the change between a configuration in which the trailer can be connected to a towing vehicle for pulling and a configuration in which the trailer can be pushed independently of a towing vehicle can thus be carried out by pivoting the drawbar from the first to the second position.
  • the front wheel acts as a support wheel and the bicycle trailer can be used, for example, as a push cart or stroller, the first end of the drawbar being arranged in the first position between the underbody surface and the floor. If the bicycle trailer with the drawbar in the first position is used as a stroller, the drawbar arranged on the side of the underbody surface does not impair the field of vision of the children being transported with the stroller and does not make it difficult to get in and out.
  • the drawbar can be fixed in the first position, the trailer frame and / or the underbody surface preferably having means for fixing the drawbar in the first position.
  • the fixing of the drawbar in the first position is used to secure the drawbar when the trailer is moved or transported independently of a towing vehicle. If the trailer has a front wheel receptacle, as described above, the fixation prevents the drawbar from being inadvertently released from the first position and a front wheel attached to the front wheel receptacle from being swiveled around the joint axis and the trailer touching the ground.
  • the underbody surface has a drawbar receptacle for receiving the drawbar in the first position.
  • the drawbar receptacle can be formed by a depression in the underbody surface, into which the drawbar can be introduced at least in sections in the first position.
  • the drawbar receptacle can also have locking lugs protruding from the underbody surface, with which the drawbar can be locked in the first position.
  • the pivot angle ⁇ between the first position and the second position is 120 ° to 210 °, preferably 170 ° to 190 °. If the pivot angle ⁇ between the first position and the second position is large, for example 180 °, the front wheel mount and the drawbar can be pivoted through 180 °. If a front wheel mount is arranged on the hinge axis as described above, the front wheel mount can be arranged diametrically opposite on the side of the underbody surface when the trailer is in operation when the drawbar is in the first position, and on the side of the loading area when the The tiller is in the second position.
  • the drawbar is pivotable between the second position and a third position, the pivoting movement of the drawbar between the second position and the third position being decoupled from a pivoting movement of the front wheel mount, the pivoting angle ⁇ between the first position and the third position is greater than the pivot angle ⁇ between the first position and the second position. In this way, the drawbar can be pivoted from the first position into the second position and beyond the second position into the third position, the pivoting movement of the drawbar between the second position and the third position being independent of a pivoting movement of the front wheel mount.
  • drawbar can be pivoted between the second position and the third position independently of the front wheel mount, it is possible to connect the end of the drawbar that can be connected to a towing vehicle for pulling the trailer to a towing vehicle at different heights without the front wheel mount being removed from its position is pivoted.
  • the drawbar and the front wheel receptacle enclose a constant angle ⁇ in the pivoting range between the first position and the second position relative to the joint axis.
  • the drawbar and the front wheel mount In the pivoting range between the first position and the second position, the drawbar and the front wheel mount have a constant angular relationship, so that the drawbar and the front wheel mount are swiveled simultaneously by the same angle in this area.
  • the hinge axis is parallel to the rear wheel mount and a front wheel attached to the front wheel mount is rotatable about an axis of rotation arranged perpendicular to the joint axis. If the front wheel and the rear wheels of the trailer are in contact with the ground, the front wheel can be rotated about the axis of rotation arranged perpendicular to the pivot axis so that when the trailer is moved with the drawbar in the first position, the trailer can be steered around the front wheel.
  • the front wheel attached to the front wheel mount can be detachably and / or a splash guard can be detachably attached to the front wheel mount.
  • a splash guard attached to the front wheel receptacle can protect the trailer or the goods and / or people located on the loading area from spray water whirled up by the towing vehicle.
  • the splash guard can be attached to the front wheel mount as an alternative to the front wheel or in addition to the front wheel. If the splash guard is to be attached to the front wheel mount instead of the front wheel, the front wheel is first detached from the front wheel mount and replaced by the spray guard. If the bicycle trailer is to be used, for example, to transport large goods, the front wheel can be detached from the front wheel mount so that the arrangement of goods on the loading area is not made difficult by the front wheel.
  • the bicycle trailer 1 is a multifunctional trailer that can be connected to a towing vehicle for pulling or can be used as a stroller independently of a towing vehicle.
  • the bicycle trailer 1 has a trailer frame 2 with a front 2a, a back 2b, a top 2c and a bottom 2d.
  • Two rear wheels 4a are attached to a rear wheel mount 4 connected to the trailer frame 2.
  • the bicycle trailer shown is used to transport children, so that the loading floor 3 connected to the trailer frame 2 is designed as a child seat.
  • the loading floor 3 has a loading area 3a and an underbody area 3b. Loading area 3a and underbody area 3b are arranged on opposite sides of loading floor 3.
  • the underbody surface 3b and the underside 2d of the trailer frame 2 face the ground on which the bicycle trailer 1 is parked with the rear wheels 4a.
  • the trailer 1 has a drawbar 5 with a first end 5a and a second end 5b, the second end 5b of the drawbar 5 being attached to the trailer frame 2 via a hinge 6 with a hinge axis 6a in such a way that the drawbar 5 is relative to the Trailer frame 2 is pivotable between a first position and a second position.
  • the joint axis 6a of the joint 6 is arranged parallel to the rear wheel mount 4 and closer to the front side 2a than the rear wheel mount 4.
  • the first end 5a of the drawbar 5 protrudes beyond the front side 2a of the trailer frame 2 and can be connected to a towing vehicle.
  • the first end 5a of the drawbar 5 is on the side of the underbody area 3b, ie between the underbody area 3b and the ground, and closer to the rear side 2b of the trailer 2 than the second end 5b of the drawbar 5.
  • the first end 5a of the drawbar 5 does not protrude beyond the trailer frame 2, so that the trailer 1 can be easily transported with the drawbar 5 in the first position.
  • the bicycle trailer 1 with the drawbar 5 in the first position is in the Figures 2 and 4th shown.
  • the trailer 1 also has a front wheel mount 7 and a front wheel 8 fastened to the front wheel mount 7.
  • the front wheel receptacle 7 is coupled to the drawbar 6 relative to the trailer frame 2 about the hinge axis 6a of the joint such that in a side view perpendicular to the front 2a and the rear 2b of the trailer frame 2, as shown in FIGS Figures 3 to 5 is shown, the axis of rotation 8a of the front wheel 8 is arranged on the side of the underbody surface 3b when the drawbar 5 is in the first position, and the axis of rotation 8a of the front wheel 8 in the side view is arranged on the side of the loading area 3a and further towards Side of the loading area 3b is shifted out when the drawbar 5 is in the second position.
  • the front wheel 8 can be brought into engagement with a roadway, so that the front wheel 8 can roll over the roadway about its axis of rotation 8a.
  • the bicycle trailer 1 can be pushed as a stroller independently of a towing vehicle with the rear wheels 4a and the front wheel 8 over the road.
  • the front wheel 8 fastened to the front wheel receptacle 7 can also be rotated about an axis of rotation 8b arranged perpendicular to the hinge axis 6a, so that the bicycle trailer 1 can be steered with the aid of the front wheel 8.
  • the trailer 1 By pivoting the drawbar 5 between the first position and the second position, the trailer 1 can be prepared quickly and easily for use as a bicycle trailer 1 or as a stroller.
  • the pivoting movement of the drawbar 5 for leaving the second position in the direction of the first position does not include any directional component which points in a direction away from the underbody surface 3b of the loading floor 3 towards the loading surface 3a.
  • the drawbar 5 is pivoted in the direction of the roadway.
  • the Figure 5 shows for illustrative purposes the drawbar 5 both in the first position and in the second position, the pivot angle ⁇ describing the angle between the first position of the drawbar 5 and the second position of the drawbar 5.
  • the pivot angle ⁇ is 180 °.
  • the drawbar 5 can also be pivoted between the second position and a third position without the front wheel mount 7 being swiveled with a pivoting movement of the drawbar 5 between the second position and the third position.
  • the pivot angle ⁇ between the first position and the third position is greater than the pivot angle ⁇ between the first position and the second position.
  • the drawbar 5 can be pivoted from the first position first into the second position and then beyond the second position into the third position.
  • the additional pivotability of the drawbar 5 between the second position and the third position enables the first end 5a of the drawbar 5 to be connected to a towing vehicle at different heights without changing the horizontal orientation of the bicycle trailer 1 relative to a roadway.
  • the front wheel mount 7 and the drawbar 5 form a constant angle ⁇ relative to the hinge axis in a side view perpendicular to the front side 2a and the rear side 2b of the trailer frame 2 (see FIG Figure 5 ).
  • the constant angular relationship prevents the front wheel receptacle 7 from being able to be pivoted in the pivoting range between the first position of the drawbar 5 and the second position of the drawbar 5 independently of the drawbar 5.
  • the constant angular relationship increases safety when operating the bicycle trailer 1 as a stroller, since locking the drawbar 5 in the first position prevents a front wheel 8 detachably attached to the front wheel mount 7 from swiveling unintentionally and the bicycle trailer 1 from touching a surface .
  • a splash guard 9 can be attached to the front wheel mount 7 instead of the front wheel 8, as shown in FIG Figure 6 is shown.
  • the splash guard 9 protects the children in the bicycle trailer 1 from splashing water which could be whirled up by a towing vehicle traveling ahead.
  • the trailer 1 also has an outer skin 10 which is stretched over the trailer frame 2 and the occupants and goods inside the trailer 1 are protected from the elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Handcart (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
EP18161403.3A 2017-03-22 2018-03-13 Fahrradanhänger mit verschwenkbarer deichsel Active EP3378754B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017106142.8A DE102017106142A1 (de) 2017-03-22 2017-03-22 Fahrradanhänger mit verschwenkbarer Deichsel

Publications (2)

Publication Number Publication Date
EP3378754A1 EP3378754A1 (de) 2018-09-26
EP3378754B1 true EP3378754B1 (de) 2020-08-12

Family

ID=61628171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18161403.3A Active EP3378754B1 (de) 2017-03-22 2018-03-13 Fahrradanhänger mit verschwenkbarer deichsel

Country Status (4)

Country Link
EP (1) EP3378754B1 (es)
DE (1) DE102017106142A1 (es)
DK (1) DK3378754T3 (es)
ES (1) ES2813086T3 (es)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5308096A (en) 1990-11-26 1994-05-03 Kid Around Kinetica Inc. Bicycle trailer
NL1015392C2 (nl) * 2000-06-07 2001-12-10 Woudengroep Multifunctioneel transportwagentje.
CN2483222Y (zh) * 2001-04-27 2002-03-27 好孩子儿童用品有限公司 可兼做推车使用的自行车拖车
US6959938B1 (en) * 2003-05-13 2005-11-01 Ssu-Liu Liu Folding collapsible baby trailer
CA2435615C (en) * 2003-07-21 2010-03-16 Pi Manufacturing Inc. Multi-purpose tow bar for a trailer
US20070284842A1 (en) * 2006-06-13 2007-12-13 Pacific Cycle, Llc. Collapsible bicycle trailer
DE202008013184U1 (de) * 2008-10-07 2008-12-18 Free Parable Design Co., Ltd. Fahrradanhänger
WO2011037756A2 (en) * 2009-09-22 2011-03-31 Burley Design Llc Bicycle trailer, hitch and method
DE102011103757A1 (de) * 2011-05-31 2012-12-06 Ulrich Hartung Gleisloses Landfahrzeug
FR3003801B1 (fr) * 2013-03-28 2017-02-17 Dorel France Sa Poussette pour enfant transformable en remorque pour velo

Also Published As

Publication number Publication date
ES2813086T3 (es) 2021-03-22
DK3378754T3 (da) 2020-09-14
DE102017106142A1 (de) 2018-09-27
EP3378754A1 (de) 2018-09-26

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